You can download it here: http://ryanhellyer.net/2008/02/23/aqua-vaccinium-wordpress-theme/
And I have a demo here:
If you have any questions relating to the theme, then please leave a comment on the Acqua Vaccinium page.
Vaccinium is the genus for a variety of berries including blue berries which I am about to bake a pie with to celebrate the completion of the theme :) The word Aqua came from the mixture of the blue and green tones of the design. The theme design, coding and PSD for the logo are released under a GPL license.